水分胁迫后复水对苹果结果树体内14C-光合产物分配的影响

被引:14
作者
徐迎春
李绍华
孔兰静
机构
[1] 南京农业大学园艺学院
[2] 中国农业大学园艺学院
[3] 山东农业大学植物科学系
关键词
苹果; 水分胁迫; 复水; 14C-光合产物; 运输; 分配;
D O I
暂无
中图分类号
S661.1 [苹果];
学科分类号
摘要
利用14 C示踪方法研究胁迫后复水对14 C 光合产物从苹果结果树叶片的输出及其在体内的分配影响。结果表明 ,胁迫期间14 C 光合产物合成和输出量均减少 ,同化物向枝、干的分配率增加 ,向新梢 (幼叶 )和果实的分配率下降 ;胁迫后复水 ,同化物的合成和输出均较胁迫条件下改善 ,但仍未完全恢复到充分供水的水平 ,同化物优先运往新梢 (幼叶 ) ,果实未获得较多的同化物。
引用
收藏
页码:41 / 45
页数:5
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